2100571272 has 64 divisors (see below), whose sum is σ = 6178161600. Its totient is φ = 659001600.

The previous prime is 2100571271. The next prime is 2100571307. The reversal of 2100571272 is 2721750012.

2100571272 is a `hidden beast` number, since 21 + 0 + 0 + 571 + 2 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2100571271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282354 + ... + 289697.

It is an arithmetic number, because the mean of its divisors is an integer number (96533775).

Almost surely, 2^2100571272 is an apocalyptic number.

It is an amenable number.

2100571272 is an abundant number, since it is smaller than the sum of its proper divisors (4077590328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100571272 is a wasteful number, since it uses less digits than its factorization.

2100571272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572083 (or 572073 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 2100571272 is about 45831.9896142421. The cubic root of 2100571272 is about 1280.6952749390.

The spelling of 2100571272 in words is "two billion, one hundred million, five hundred seventy-one thousand, two hundred seventy-two".